diff --git a/src/Our.Umbraco.IoC.Unity/packages.config b/src/Our.Umbraco.IoC.Unity/packages.config
index 072feae..73861e6 100644
--- a/src/Our.Umbraco.IoC.Unity/packages.config
+++ b/src/Our.Umbraco.IoC.Unity/packages.config
@@ -33,7 +33,7 @@
   <package id="Newtonsoft.Json" version="10.0.2" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="semver" version="1.1.2" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net45" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.2" targetFramework="net45" />
   <package id="System.Threading.Tasks.Dataflow" version="4.7.0" targetFramework="net45" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.2" targetFramework="net45" />